Improvement in printing-presses



W. F. ROSSER & J. L. BRIGGS.

Printing-Press.

No, 206372. Patented Aug. 13,1878

INY ENTOR:

ATTORNEYS.

WITNESSES NJ'ETERS, PHOTO-LITNOGRAFHERA WASHINGTON D c UNITEDSTATES-PATENT OFFICE.

\VILLIAM F. ROSSER AND JULIUS L. BRIGGS, OF MARSHFIELD, MISSOURI.

IMPROVEMENT IN PRlNTlNG-PRESSES.

Specification forming part of Letters Patent No. 206,972., dated August13, 1 78; application filed J unc l, 1878.

To all whom it may concern:

Be it known that we, WILLIAM F. Rossnn and J ULIUs L. BRIGGS, ofMarshfield, in the county of \Vebster and State of Missouri, haveinvented a new and Improved Printing-Press Attachment, of which thefollowing is a specification:

The object of our invention is to provide a cheap and simple attachmentto hand printingpresses for guiding, catching, and holding the frisketwhen the latter is being raised from the tympan for adjusting the paper,or for other purposes.

The invention consists in a guide-rod adj ustable in position upon theframe of a printingpress, and provided with a hook for holding up thefrisket; and in the combination with the frame of aprinting-press, andwith arod having a hook upon its end for holding up the frisket, of aguide-clamp attachable to the frame, and having a set-screw for holdingthe said rod in position, as will be hereinafter described.

In the accompanying drawing, Figure 1 represents a perspective view ofour printingpress attachment. Fig. 2 is a perspective View of amodification of the same.

Similar letters of reference indicate corresponding parts.

A is a rod, having a hook, a, formed upon one end, its other end beinginserted in a hole through the frame B of the hand-press, as in Fig. 2,or through the clamp C, so that the rod A may be slid back and forth, asrequired, to adjust the distance between the frame B and the hook at,and is secured in the adjusted position by a set screw, b.

The clamp C is formed of a piece of metal bent at its center, where theset-screw is inserted, and having its two ends bent against each otherto form the jaws c, for grasping the frame B, the clamp being secured inposition by closing the jaws 0 upon the frame B by tightening the nut (1upon the bolt D, which bolt goes through the two jaws of the clamp, andrests upon the upper surface of the frame B. The guide-hole for the rodA, through the opposite sides of the clam p G, is at right angles to theset-screw I).

When the tympan E is raised from the type F, and the frisket G thrownback from the tympan, the guide-rod A prevents the frisket from passingabove the hook a, and the hook holds the frisket in position when thesaid frisket is lifted into the said hook.

Having thus described our invention, we claim as new and desire tosecure by Letters Patent- 1. The guide-rod A, adjustable in positionupon the frame of a printing-press, and provided with the hook a, forholding up the frisket, substantially as specified,

2. The combination, with the frame B of a I printing-press, and with therod A, provided with the hook to, for holding up the frisket, of theclamp G, attachable to the frame B, and having the set-screw b, forholding the rod A in position, substantially as specified.

WILLIAM F. ROSSER. JULIUS L. BRIGGS. Witnesses:

J. L. WARD, A. B. J EFFRIES.

